CUSTOM CONTOURS. Each set of ARIES 3-inch nerf bars is custom-bent to contour to each unique vehicle body, adding functional footing and accenting your ride with aftermarket style NON-SKID STEP. These step rails are equipped with custom-positioned step pads, providing a dependable, non-skid step exactly where you need it RIGID TUBING. For reliable strength and enhanced rigidity, these step bars are constructed from 3-inch diameter, heavy-wall tubes. The tubes offer a sleek look for a stylish accent on the vehicle CORROSION-RESISTANT. These nerf step bars are made from 304 stainless steel to be highly rust-resistant. They also feature a bright, polished stainless finish for a mirror-like shine NO-DRILL. These ARIES nerf bars mount with zero drilling required and fit select model years of the Chevy or GMC C1500, C2500, C3500, K1500, K2500 and K3500